big O

an orgasm, usually intense.

"He got me to the big O last night.

by Starla Pureheart June 29, 2002

big O

1. an orgasm, a sexual climax

2. opium

Once I reach the big O, there is no turning back.

by The Return Of Light Joker November 26, 2007

The Big "O"

an orgasm; cumming; seeing god

"The Big O" with a woman has been elusive for Pete for many years.

by Total Penetration June 9, 2005

big O

a giant robot in the anime big O

guy:*looks at watch* BIG O! *robot appears*

by O_oo_O July 17, 2003

The Big O

Nickname of basketball legend Oscar Robertson.

There has never been a basketball player more versatile than The Big O.

by IcebergSlim78 March 13, 2009

big O

one who is large, cheerful, and especially O-ish in nature

"Big O has got to be the coolest kid in the world.....next to Kearney"

by Big O April 23, 2003

big o

the city of Omaha, Nebraska located in the midwest of the United States. Known for it's corn-fed cattle, rich man Warren Buffett, and popular independent record label, Saddle Creek. Often signified by the capital letter O and an exclamation mark- O!

I live in the Big O.

by lo beedle January 26, 2004